Serotonin addresses our own desires and motives as individuals. The play follows the stories of four people who have more in common than they know. These characters are stuck in a waiting room, but have no idea of their true surroundings. It takes a dose of isolation and contemplation to realize who they are, and also for us to realize how similar we all are. This piece has been devised by five first years over the course of the year and strives to teach us about introspection.